<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>xx</title>
    <script src="https://cdn.bootcss.com/vue/2.6.10/vue.js"></script>
</head>
<body>

<div id='xx' >
    <input v-model="info">
    {{info}}
</div>

<script>
    new Vue({
        el: '#xx', data: {'info': 'eee'}
    });
</script>

</body>
</html>